The state’s high court says two former Lawrence Livermore National Laboratory scientists are barred from suing over allegations they were fired for complaining about safety problems.

The California Supreme Court unanimously tossed the lawsuit today. The court cited the state’s whistleblower law, which bars such complaints against the University of California as long as the school system seriously considers the grievance and makes a timely decision.

The university, which manages the lab, rejected the claims of Les Mikosy and Luciana Messina. The scientists claimed they were fired for raising safety concerns about the National Ignition Facility, a superlaser used for investigating nuclear fusion.